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CWE

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CVE-2023-4785

Published: Sep 13, 2023

Modified: Jan 12, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected.

Vendor	Product	Versions
Google	gRPC	unaffected `0 - < 1.23` unaffected `1.57` affected `1.56.0 - <= 1.56.1` affected `1.55.0 - <= 1.55.2` affected `1.54.0 - <= 1.54.2` +1 more versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

https://github.com/grpc/grpc/pull/33656

https://github.com/grpc/grpc/pull/33667

https://github.com/grpc/grpc/pull/33669

https://github.com/grpc/grpc/pull/33670

https://github.com/grpc/grpc/pull/33672

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